NHTSA lists 3 safety recalls and 506 owner complaints for the 2023 GMC Sierra. Most complaints involve engine (214) and structure (94). The EPA rates it 17–26 mpg combined, and NHTSA gives it 5 stars overall.
General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."
General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“My 6.2 motor in my 2023 GMC AT4 truck has blown up. As part of the recall that GM has on this motor it passed the "pico test" at around 50k miles or so ( I can provide the paperwork) and then this past week with 63k miles or so the engine developed a miss and eventually by the time I got it to the dealer there was a significant "engine knock". The service center called the next day and said there was definitely a engine failure and I was lucky to have made it to the dealer. The vehicle is at the dealer waiting on a new engine. I was quoted 2 weeks but we are passing that time frame now. GM needs to be held accountable for this mess.”
“The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving at 70 MPH, the attachments used to hold the front grille deflectors in place fractured and the front grille detached. The contact associated the failure with NHTSA Campaign: 25V060000 (Structure); however, the VIN was not included in the recall. The dealer was contacted. The manufacturer was contacted by phone and made aware of the failure. The manufacturer stated that the repair was not covered because the VIN was not included in the recall. The contact was referred to the NHTSA Hotline to report the issue. The failure mileage was approximately 69,450.”
“On XXX, at approximately 2:30am, about 30 hours after purchase, a 2023 GMC Sierra Denali Ultimate suffered catastrophic engine failure in [XXX] during a planned 20 hour trip. The vehicle had about 49,007 miles at purchase and 49,411 miles at the time of failure. The check engine light appeared during the trip. Over five hours into the journey, shortly after passing through a one-lane construction zone with no shoulder, the truck made noises, then lost driving power and began slowing among highway traffic. The dashboard displayed "LOW OIL PRESSURE STOP ENGINE," code P0016, and a transmission warning. I had to move into another lane to reach the shoulder. The sudden loss of propulsion at 2:30am created a serious crash risk because the truck could have been struck by nearby traffic or become disabled on the one-lane road without a shoulder. The engine had received the GM L87 recall remedy on XXX involving a change to 0W-40 oil. Despite this remedy, the engine failed while the vehicle was moving. The repair order lists replacements for the engine, radiator, oil cooler lines, intake manifold and gaskets, spark plugs and wires, water pump gaskets, high pressure fuel…”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Sierra 2WD Auto 10-spd, 6 cyl, 3.0 L, Diesel, Turbo · Rear-Wheel Drive | 24 | 29 | 26 | $3,600 | 396 |
| Sierra 4WD Auto 10-spd, 6 cyl, 3.0 L, Diesel, Turbo · 4-Wheel Drive | 22 | 27 | 24 | $3,900 | 423 |
| Sierra 2WD Auto 8-spd, 4 cyl, 2.7 L, Turbo, SIDI · Rear-Wheel Drive | 19 | 22 | 20 | $3,200 | 446 |
| Sierra 2WD Auto 8-spd, 4 cyl, 2.7 L, Turbo, SIDI; with Sport Mode · Rear-Wheel Drive | 19 | 21 | 20 | $3,200 | 453 |
| Sierra 2WD Auto 10-spd, 8 cyl, 5.3 L, SIDI; FFV · Rear-Wheel Drive | 16 | 20 | 18 | $3,550 | 496 |
| Sierra 2WD Auto 10-spd, 8 cyl, 5.3 L, SIDI; with Sport Mode · Rear-Wheel Drive | 16 | 21 | 18 | $3,550 | 493 |
| Sierra 2WD Auto 10-spd, 8 cyl, 5.3 L, SIDI; Municipal · Rear-Wheel Drive | 16 | 20 | 18 | $3,550 | 500 |
| Sierra 2WD Auto 10-spd, 8 cyl, 5.3 L, SIDI · Rear-Wheel Drive | 16 | 21 | 18 | $3,550 | 493 |
| Sierra 4WD Auto 10-spd, 8 cyl, 5.3 L, SIDI; FFV · 4-Wheel Drive | 15 | 19 | 17 | $3,800 | 524 |
| Sierra 4WD Auto 10-spd, 8 cyl, 5.3 L, SIDI; with Sport Mode · 4-Wheel Drive | 16 | 20 | 17 | $3,800 | 523 |
| Sierra 4WD Auto 10-spd, 8 cyl, 5.3 L, SIDI · 4-Wheel Drive | 16 | 20 | 17 | $3,800 | 523 |
| Sierra 4WD Auto 10-spd, 8 cyl, 5.3 L, SIDI; Municipal · 4-Wheel Drive | 15 | 19 | 17 | $3,800 | 535 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
3 safety recalls as of Nov 4, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 506 complaints with NHTSA. The most-cited components are engine (214), structure (94), power train (92). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2023 GMC Sierra at 17–26 mpg combined, depending on engine and drivetrain (12 versions rated).
NHTSA's New Car Assessment Program gives the 2023 GMC Sierra 5 out of 5 stars overall.